how does AWS's auto scale work? (转载) - 未名空间MITBBS历史存档

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how does AWS's auto scale work? (转载)

how does AWS's auto scale work? (转载)# JobHunting - 待字闺中

q*q2014-04-22 07:04

1 楼

【以下文字转载自 BuildingWeb 讨论区】
发信人: qiiq (qiiq), 信区: BuildingWeb
标题: how does AWS's auto scale work?
发信站: BBS 未名空间站 (Tue Apr 22 12:54:57 2014, 美东)
Suppose I launched an AWS instance, deployed my application (i.e., a Java
WAR). When a single instance is incapable of handling the heavy traffic, is
the AWS going to automatically duplicate the application to another instance
and redirect some traffic to the second instance? Here, I consider an "
instance" as a "server", but I'm not sure whether I'm correct.
Any advice is appreciated!

t*32014-04-22 07:04

2 楼

autoscale with ELB, this should work. It is starting a duplicated server and
adding to ELB.

q*q2014-04-22 07:04

3 楼

Thank you. Is the deployed application automatically copied to that
additional server? If that's the case, what if the content of the
application package changes in one server but not the other, following some
user operations (like a file is uploaded and stored relative to the
application context path?)

and

【在 t****3 的大作中提到】

: autoscale with ELB, this should work. It is starting a duplicated server and
: adding to ELB.

t*32014-04-22 07:04

4 楼

autoscale should be image based, you may need to update other servers if you
want to deploy new package to one server. I have not used AWS for few years
, you'd better check online doc to confirm.

q*q2014-04-22 07:04

5 楼

Thank you for your help! I'm new to this, so please excuse me if the
question was too simple sometimes naive...

you
years

【在 t****3 的大作中提到】

: autoscale should be image based, you may need to update other servers if you
: want to deploy new package to one server. I have not used AWS for few years
: , you'd better check online doc to confirm.